Culvert.



No, 854,397. A PATENTBD MAY 21', 1907'.

' F. s. & P. H. BEAGH.:

`CULVERTl A .PILIOATION FILED AUG. 11, 1905.

2 SHEETS- GEEST l..

No. 854,397. PATIENTBD MAY 21, 1907.

' F. s.' at F. H. BEACH.

I cULvBRT. APPLIOATION FILED AUG. 11, 1906.

2 SHEETS-snm' 2.

,. l i f 'Attorneys IUI.

UNITED STATES PATENT OFFICE.

FRED s. BEACH AND 4inronn. BEACH, or CnARLoiTn-ivncnieaiv.

--cuLvEnT.

Specication o f Lettersgate'i.

Patented May 21, 1907.

Application nea iugm 11,1905. Sain No. 278.786..

the following is a specification.

' This invention-relates to-certain improvewhile at the same sary toprevent 'accom an g p ylibreto appended 1t being underchanges in formpropor-f principle or sacrificing `when the water in .tent as to mentsin sectional culverts of'tha't generalv class designed for use -beneathrailway-` tracks, roadways and thelike or in the construction of sewers,conduits 4and similar structures. of this character it has heretoforebeen -the custom to mold or otherwise form the several sections vof theculvert with interlocking lugs and to provide the adjacent edges thereofwith seating flanges to permit independent lateralvmovementof theseveral sections when the water in the culvert freezes. It has beenfound by experience, however, that eral pressure on the walls of theculvert sections will dis lace said sections toA such an eX- isengagethe locking lugs and thereby cause the culvert to collapse when the icein the latter melts.

The object of the present invention is to obviate this difficulty vvbyproviding means for limiting the lateral movement of the several culvertsections so that said sections will be retained in constant engagementwith each other regardless of climatic conditions time permitting therequisite lateral movement of said sections necesinjury to the same whensub-V jected to internal pressure.

With thesev and other objects in view the invention consists in the'construction and novel combination and arrangement of parts hereinafterfully described, illustrated in the drawings and pointed out in theclaims stood that various tions and minor details of construction may beresorted to without departing from` the any of the advantages of theinvention.

-cordance withmy In the vm5 Gmpanying drawings forming a part of. thisspeciiicationzf-Figure 1 is a per of a culvert constructed inacinvention. Fig; 2 is -asimilar view illustrating a modified form'4 ofthe invention. Fig. 2v is a perspective view s ective view vresidingatCharlotte, in the county Y In the manufacture of culverts the culvertfreezes the lat- .showing a modied form of Fig. 2. Fig.v 4 is aperspective view illustrating a further modijication.

showing each section ofthe culvert provided with parallel ribs -for the'reception of the unobstructed edge, of the adjacent section. Fig. 6 isa similar view vshowing the opposite longitudinal edges of the basesection provided .with'parallel ribs. 'Fig.'7 is a perspec- Vtive viewofa furtherl modification in which the culvert sections are formedwithdovetailed interlocking lugs. Fig. 8 is a similar view of a stillfur her modification wherein the interlocking lugs are formed of angleiron. l

Similar numerals of reference indicate corresponding parts in all [thefigures of the drawings.

for the purpose of lillustrating the dierent ways of accomplishing thesame result namely; preventing excessive lateral movement of the culvertsections.

metal or other suitable material are preferably triangular in crosssection, as shown, and each comprises a base 5 and sectional side plates6 and 7. The plates are made in and arranged to dinal junctures,said'plates being preferably slightly curved or bowedin cross sectionand formed with a seriesof transversely disposed strengthening ribs orVcorrugations 8, varying in number and distance apart according to thesize of the plates and strength required for thel culvert.. l

In the preferred form of the invention, shownin Fig.. 1 of the drawings,the plates are interchangeable and each provided atits opposite loOitudinal edges wltha plurality o spaced loc 'ng' lugs 9 adapted tointerlock with the corresponding lugs of an adjacent section when theseveral sections are assembled, said lugs forming. interrupted seatingflanges 9 for theedges of the plates whereby said plates are free tomove aterally 'when the water inthe culvert freezes. ing lugs 9 areformed with lateral projections orflanges 10, portions of adjacentplates and serve-to limit the lateral movement of said plates when thewater inthe culvert freezes. Byhaving vthe Several forms of culverts arehereinshown.

vsuitable lengths, abutting at opposite ends break joint at theirlongitu-` Fig. l5 is a perspective v1ew V The culverts which may beconstructed .of

'roo

The lock which engage the curved body locking -lug'sformed in the mannerdescribed eaidilugslwill be retainedinconstant engage- Wardly om theedges thereof to form seating nal edges of adj acent ate being formedwith a .plu'

nient lwith eachother regardless ofclimatic,`

conditions/so that when the ice "in the culand .the side plates 6 and 7are each provided Witha series of u wardly Iproj ecting triangular shaed inter ocking ugs 11 spaced inilanges 12for the recegtion ofthelongitudij p ates, the longitudinal edge ofeach p rality of laterallyprojecting flanges or stop lugs13 similar to t e lugsshown inl Fig. 1for I limiting 'the lateralymovement of said plates,

While in Fig. 3 a continuousflange or stop rib 14 is provided purpose.'I

lnjFig. 4 each plate comprising the culvert is provided .with a shoulderor offset 15 delining a seating'llangel provided with locking lugs I17which engage corresponding notches orrecesses 18 formed in thelongitudinal edge In this case the odset of the adjacent plate. edge ofeach plate is provided with a continuous` stop rib or flange 19 similarto that shown in Fig.,3 for limiting the-lateral movement of the severalplates,alt`hough one or more spaced stay lugsmay-be employed in' thisforni ofthe device if desired. l

In Fig.v5 there is illustrated a further modification in which leachplate is'formed at the edge thereof With a longitudinally disposed.

upwardly extending rib 20 defining a seating flange 21 and provided atintervals with notches or recesses'22 adapted to receive spaced lockinglugs 23 projecting from the.

inner face of the plate lat the opposite edge thereof, there being asimilar long1tudinal rib or flange 24 formed on `one ed e of each-plateand s` aced from the rib 20 or limiting the latera movement of saidplates. j'

Fig. y6 shows 'a culvert similar in construction vto that shown in Fig.5 only the base plate 5 is formed with a stop rib ,or liange 2,4

' at each longitudinal'edge thereof.

Ving disengaged from each 'otherwhich is-a- "S A further modification is1llustrated' in 7 of the drawings inwhich the vseveral plates comprisingthe culvert are provided with interlocking dovetailed lugs .25 Awhichallow a limited lateral movement of .the plates but prevent complteseparation of the pait's`,

while in Fig. 8 the dovetailed locking lugs 26 are Vformed of angleiron, as shownfthereb serving to reinforce and strengthen the cu -V vertand at the same timelimit the' lateral movement of the independentsections.

From the foregping description itl culverts are free to expand or movelaterally and vat the samel time prevented from becommaterial`=advantage in this class of devices sitiOn.

for accomplishing the same inasmuch as it effectively preventscollapsing of the culverts after being once 'placed in po- Havin thusdescribed is claime is:-' s j l- 4 Y. I 1-. A sectional culvertcomprising a. plu# rality of laterally-'movablesections providedWithinterlocking lugs, and projections carthe invention, what ried byand extending at an angle from the 4- free endsiof the lugs andadaptedto engage the exterior'walls of an adjacent section for.

limiting the lateral movement ofsaid ,sec'

tions. 4 l

-2. A sectional culvert comprising a. plu.- rality oflaterallymovablesections each provided` with interlocking lugs, thespaces be# tween the lugs constituting an interrupted seating flange,and means carried by and ex'- vtending-at an angle from the free ends ofthe lugs and adapted to engage the exterior Walls ofan adjacent sectionor limiting the lateral movement of said sections,v

3. A sectional culvert comprising aplurality of laterally-movableinterchangeable sections provided with interlocking .lugs the ends ofwhich are bent-at an angle tofthe longitudinal plane of the lugsforengage.- ment with 'the exterior Walls of an adjacen/t sectionthereby to limit the lateral 'move ment of said sections. l. l l j `4. Asectional culvert comprising a plurality oflaterally movable Sectionsarranged in substantially tri-angular form and provided witliintereng'aging parts, and a pro' jection on each section and extendinglatere', ally at an angle from the locking means for engagementj withthe exteriorA walls of an adjacent section thereby to limit the lateral.movement of'said sections. I v

5. A sectionaly culvert comprisingfa 4'plurality of laterally movablesections having' interengaging parts for locking; saidy sections y,against longitudinal movement, and lmeans said sections.

ros

Yon each sectionind'ependent 'of the looking means forlimiting thelateral movernelltf 6. A sectional culvert .comprising a-'plu-w"movement of said sections'. j.

7'. A sectional'culvert comprising a'plu" lralityof; laterally movablesections having interlocking arts, and means "on each sec' tionindepenent of. the locking means andv l over-lappm the exterior walls lofadjacent Will be seen .that the sectional plates ofthe different.

sections for imiting the lateral movement of said sections.

f 8; A sectional vculverty comprising a plu. i rality of lateral.movable interlocking sec-l rio for engagement with the exterior Walls ofadjacent. sections thereby to limit the lateral Vmovement ofsaidsections.

9. A sectona1` culvert comprising a plurality` of laterally movablesections havin their' oppositelongitudinal ed es provide Y .with spacedrecesses dening ocking lugs over-lapping the exterior Walls of ad]acentsections for limiting the lateral movement of said sections.

' In testimony that We claim the foregoing as our own, We have heretoaiiixed our sgna- 15 tures in the presence of two Witnesses. A

FRED s. BEACH. FITCH H. BEACH.

Witnesses:

FEED A. FAIRCHILD, C. L. THOMAS.

